6 



Latitude, 42° 23' 48. 5" XT. Longitude, 72° 31' 10" W. Height 

 of instruments above ground, 51 feet. Above sea level, 260 

 feet. 



Pressure. — In inches. Actual Maximum Reading - , 30.208 ; 

 Mean, Reduced to 32° F., 29.750; Monthly Range, 0.938. 



Air Temperature. — In Degrees, F. Mean, 46.5° ; High- 

 est, 69° ; Lowest, 26° ; Monthly Range, 43° ; Highest 

 Mean Daily, 61.3°; LoAvest Mean Daily, 35.2°; Mean 

 Maximum, 53.9° ; Mean Minimum, 38.9° ; Mean Daily 

 Range. 15.4° ; Greatest Daily Range, 29°. 



Humidity. — Mean Dew Point, 39.4°; Mean Relative 

 Humidity, 75.7 ; Mean Force Vapor, .3349. 



Wind. — Prevailing Direction, North North-east; Total 

 Movement, 4,762 miles ; Greatest Daily Movement, 367 

 miles — 15th; Least Daily Movement, 20 miles — 31st; 

 Mean Daily Movement, 153.6 miles ; Mean Hourly Velocity, 

 6.4 miles ; Maximum Pressure per Square Foot, 12^ pounds 

 — 49 miles per hour on the 14th at 12 m., and 15th at 



4 A.M. 



Precipitation. — In inches. Total, 3.59 inches; at Base 

 of Tower, 4.58 inches. 



Bright Sunshine. — Number of Hours Recorded, 129. 



Weather. — Mean Cloudiness on a Scale of 10, 6 ; Number 

 of Clear Days, 9 ; Number of Cloudy Days, 16 ; Number 

 of Fair Days, 6 ; Total Cloudiness Recorded by Sun Ther- 

 mometer, 193 hours, or 59.9 per cent. 



Thunder and Lightning, 1st. 



Frosts, 3d, 5th, 8th, 9th, 11th, 12th, 16th, 17th, 19th, 

 22d, 23d, 24th. 



Winds followed by Bain, 1st. 



Number of Bays on which .01 inch or more rain fell, 14. 



Auroras, 21st. 



Meteors, 21st. 



Snoiv, on northern hills, 13th. 



